We just use the jackets going out of the radio shack.
Laptop computers can be purchased through a wide range of means, including your local electronics store like Best Buy, Radio Shack or hhgreg and on the Internet.
For electronics and music, you can shop at fye (For Your Entertainment), GameStop, Radio Shack and various cell phone kiosks and stores.
The latter type of cord is available at Wal-Mart or Radio Shack for around 20 dollars.
You can find Net10 phones online or at Radio Shack or other authorized dealers.